baber/WOPTO huggingface dataset:
Patent GB-217724-A (GB)
Title: Improvements relating to electric switches
IPC: H01H21/28
Filed: 1923-05-10
Abstract: 217,724. Cloud, J. W. May 10, 1923. Switches, locking and unlocking. - A device for preventing current wastage comprises a spring-actuated rod 9 which, when a door 1 is open, holds a switch 10 in the " off " position. Closing the door 1 moves the rod 9 to the right and the switch 10 can then be moved " on " by hand. Opening the door 1 releases the rod 9 which then, in the construction shown, moves the switch "off." According to a modification, this opening movement of the switch is effected by the door 1 striking an extension of the knob 11 of the switch.
Patent GB-1274362-A (GB)
Title: Method of diffusing impurity elements into a semiconductor
Inventor: KOHARA RIKUSEI
IPC: H01L21/225
Filed: 1970-03-16
Abstract: 1,274,362. Semi-conductors. MATSUSHITA ELECTRONICS CORP. 16 March, 1970 [20 March, 1969], No. 12580/70. Heading H1K. Impurity elements are diffused into a semiconductor, e.g. silicon substrate, to give N- or P-type conductivities, by dissolving an impurity compound, e.g. phosphorous pentoxide, phosphoric acid, arsenic trioxide, arsenic trichloride, antimony trichloride, diboron trioxide, aluminium chloride, gallium chloride, indium chloride; into a volatile solvent, e.g. water ethanol, ethyl cellosolve, methanol, ethyl ether, amylacetate, acetone, dioxane, acetic acid esters, dioxane; together with an organic coating material, e.g. pyroxylin, acetyl cellulose, polyvinyl acetate, polyvinyl alcohol; the mixture being coated on the substrate and the solvent evaporated; after which the impurity is diffused into the substrate by heating. Autoradiography of the substrate after diffusion of labelled phosphorus impurity shows the distribution thereof.
Patent GB-1195666-A (GB)
Title: Novel Valepotriates and process for the preparation thereof
IPC: C07D311/94
Filed: 1969-03-11
Abstract: 1,195,666. Valepotriates. KALI-CHEMIE A.G. 11 March, 1969 [30 March, 1968], No. 12635/69. Heading C2C. Novel compounds I and II in which R 1  and R 2  each represent an isopropyl or isobutyl radical and the corresponding 5,6- dihydro compounds of Formula I are prepared by extraction of roots and rhizomes of the species Valeriana mexicana, Valeriana toluccana D.C. or Valeriana wallichii D.C. below 30‹ C. with lipophilic solvents in the presence of C 2-7  aliphatic carboxylic acids at a pH of 3-7, if desired with addition of alkali metal or ammonium salts of these carboxylic acids as buffers and working up the extract.
Patent GB-836308-A (GB)
Title: Improvements in and relating to hydraulic jacks
Inventor: LANDIN LARS HERBERT
IPC: B66F3/42
Filed: 1958-04-22
Abstract: 836,308. Hydraulic lifting jacks. DOMKRAFT AKTIEBOLAG NIKE. April 22, 1958, No. 12750/58. Class 78 (3). [Also in Group XXIX]. An hydraulic lifting jack piston 10 is actuated by fluid from manually-actuated pump 6, which flows via line 22, ball valve 23 and line 9 to cylinder 3. Controlled lowering of the jack under gravity is effected when piston 6 is pushed down to its lowest position so that stud 25 displaces valve 11 downwards, allowing liquid from line 9 to flow via throttling passages on the outer surface of valve 11 and line 12 to reservoir 4. When piston 6 returns under the action of spring 8, liquid is sucked from the reservoir via line 12 and ball valve 14.
Patent GB-623681-A (GB)
Title: Improvements in and relating to door closing devices
IPC: E05F3/06
Filed: 1947-05-12
Abstract: 623,681. Door-operating appliances. POCHIN, A. D. May 12, 1947, No. 12751. [Class 65 (i)] A door closer comprising torsion spring means and adjustable hydraulic check means is characterised in that the check piston 26 is provided with a passage controlled by a valve plate 31 held by a spring 33 against the seating surface of the piston, adjustment of the valve being effected by a rotary movement of the valve plate. The latter, which lifts from the seating to provide unchecked movement on the outward stroke of the piston, is formed with a hole 35 adapted to co-operate with any one of a series of holes 34 in the seating to provide variable checking on the inward stroke. A valve bar 29, which lies parallel to the axis of the check cylinder, extends through the passage in the piston and through an aperture in the valve plate complementary to the cross-section of the bar. The latter, being in screwthreaded engagement with the wall 38 of the closer casing, may be rotated to effect adjustment of the valve plate. The bar is formed with a tapered relief surface 39 providing gradual transition from unchecked to fully checked movement, and a cut-away portion 40 for releasing pressure during the final closing movement of the door, said relief surface and cut-away portion being separated by a part of full cross-section. The torsion spring 6 may be wound up from either end by means of a spring driver 16 located within the spring and coupled by means of a pawl 121 to a main arm 20. The axis of the cylinder lies normal to a face of the casing adapted to seat against the door. The Specification describes various alternative arrangements of the checking apertures in the valve plate and seating.
Patent GB-630518-A (GB)
Title: Power-driven barrow or truck
IPC: B60P1/24
Filed: 1947-05-12
Abstract: 630,518. Vehicle wheels. FRYER, K. G. H., and MATTHEWS, W. R. May 12, 1947, No. 12795. [Class 144 (ii)] [Also in Group XXXI] Relates to a power-driven barrow or truck (see Group XXXI) having a single driving and steering-wheel. This wheel 10 may be sandwiched between a pair of smaller wheels having spade lugs 21 for propulsion on soft ground or alternatively the driving-wheel assembly may consist of a cylindrical drum having a solid tyre half-way along it and having metal slats secured to its periphery parallel to its axis on each side of the tyre to form the spade lugs.
Patent GB-944429-A (GB)
Title: Improvements relating to ring travellers for textile spinning machines
IPC: D01H7/60
Filed: 1960-04-12
Abstract: 944,429. Ring spinning. A. G. JOH. JACOB RIETER & CIE. April 12, 1960 [May 4, 1959], No. 13038/60. Heading D1D. In a combination of traveller and spinning ring, the ring has a flange where cross-sectional configuration includes an oblong head portion whose long axis is normal to a vertical web portion, the ends of the configuration being substantially semicircular and being connected to the vertical web at their lower ends by straight portions disposed at an angle of 100 degrees to the vertical while the traveller has an arcuate portion AB which has a radius S equal to the radius of the inner semicircular portion of the ring flange and extends over at least 65 degrees, the traveller having a second, thread engaging, arcuate portion CD with a radius 2. 15S, the distance b between the centres Z1, Z2 of the arcuate portions being 1À15S. In the form shown the traveller is symmetrical and has a portion BC between the arcuate portions AB, CD substantially parallel to the axis of symmetry. The arcuate path CD extends over 45 degrees and the angle between radii Z1B and Z2C is 15 degrees.
Patent GB-1453525-A (GB)
Title: Device for transferring articles
IPC: B65G47/90
Filed: 1974-03-25
Abstract: 1453525 Reciprocating conveyers TATRA NARODNI PODNIK 25 March 1974 [26 March 1973] 13187/74 Heading B8A [Also in Division B3] A device for transferring a workpiece 9 from a location 13 to a location 14 comprises an arm 1 pivoted to a frame 10 and carrying jaws 4 and a jaw actuator 3 whose position relative to the arm is controlled by a template 8. The actuator 3 is preferably pneumatic and has rearwardly extending arms 7 with a roller 6. The arm 1 is pivoted by a pneumatic cylinder 2 and during pivoting the actuator jaw assembly pivots relative to the arm. The device may be used to transfer heated workpieces between a furnace and a forging press.
Patent GB-132396-A (GB)
IPC: F41G3/24
Abstract: 132,396. Horsley, E. C. Nov. 15, 1918. Sights.-Relates to sights on aircraft for use in bomb-dropping, comprising a fixed and an adjustable sighting-point, and consists in employing a number of levers pivotally interconnected, the free end of one lever being attached to the adjustable eighting-point, and the free end of a second lever being mounted on a fixed pivot, together with logarithmic means for displacing the levers separately to allow for indicated air-speed and true wind-speed at any height, so that the adjustable sighting-point may be set according to the algebraic sum of the two displacements. In the form shown, 4 is the fixed foresight and 5 the rearsight mounted on a slotted lever 8 and slidable in a guide 6 in the frame 7. A second slotted lever 9, pivoted to the frame at 14, is coupled to the lever 8 by a pin 12 slidable in a guide 13 in the frame. The lever 8 is displaceable by a rod 18 slidable in a guide 19 and driven by a cam 21 which is rotatable from a milled head 29 through worm gearing 25, 23. The lever 9 is similarly displaceable by a cam 20 rotatable from a milled head 28. The worm spindles 26, 27 carry screw-threads engaging respectively a true wind-speed scale 33 and an indicated air-speed scale 34, both slidable along a scale 36, itself adjustable for height. The scales are calibrated logarithmically to neutralize the effect of the false readings of the air-speed indicator due to variation of air density with altitude, and the cams 20, 21 are anti-logarithmic. In a modification, the wind-speed cam operates its slotted lever through a reversing-gear, in order that the rear sight may be set for bombing either upwind or down-wind.
Patent GB-402340-A (GB)
Title: Core for dry battery and process for the manufacture thereof
IPC: H01M4/10
Filed: 1933-05-08
Abstract: 402,340. Batteries. BLTD, K., 15, Limonenstrasse, Dahlem, Berlin. May 8, 1933, No. 13348. [Class 53.] A dry battery dolly is wrapped in material g which is wound round the dolly with more than one complete turn. The inner and outer ends a, b of the wrapping may be moistened to hold it in position before the dolly is inserted in the outer container. The wrapping may be applied so that the weft threads run longitudinally. Fig. 7 is a side view of a machine for cutting lengths of wrapping material and winding them round the dollies, Fig. 8 showing various positions of the wrapping mechanism. A chain conveyer supports the dollies on pairs of rollers 18 between which arc notches 19 in the links for receiving the projecting portions of the carbon rods. The upper portion of the conveyer is prevented from sagging by a pair of supporting ledges 14. The wrapping material g is unwound intermittently from a roller 20 by means of a roller 21 which is given an intermittent movement by a latch mechanism, gearing and levers 24 actuated by a cam 23 on the main shaft. The material passes under a cutter 25 actuated by a cam 28 and the severed portion is passed on by the conveyer to the dolly feeding position. The dollies are then placed on the rollers 18 over the severed portions of material either by hand or by a grooved roller 29 which is loaded with dollies by hand or from an inclined feeding table 31 and which is rotated intermittently. Each dolly now passes under a vertically reciprocating block 38 which is so shaped that it presses the ends of the wrapping material round the rollers 18 as shown in Fig. 8, II. At the same time two troughs 42 in a vessel 41 containing water or adhesive are raised to moisten the ends of the wrapping which lie over the rollers 18. The troughs 42 are carried as shown in Fig. 13 by a block 43 which is raised at intervals by levers 47 and a cam 46 on the shaft 12. The block 38 is reciprocated by levers 45 and a cam 36. When the block 38 and the troughs 42 move away from the dolly P the wrapping again assumes a horizontal position and on the forward movement of the conveyer the front edge of the wrapping is raised by a member 48 as shown in Fig. 8, III. The member 48 may be reciprocated with the troughs 42. Further movement of the conveyer causes the wrapping to strike a guide 49 which bends the wrapping as shown in position IV. In this position a roller 50 unrolls the wrapping until the end lies between the dolly and one of the rollers 18 as shown at V, the wetted end of the material causing it to adhere to the surface of the dolly. The dolly then passes beneath another roller 52 which rotates in the opposite direction and completes the winding operation. Several rollers such as 52 may be arranged one behind another to assist in applying the wrapping tightly.
Patent GB-133523-A (GB)
IPC: A01K41/00
Abstract: 133,523. Heppell, W. J. Nov. 22, 1918. Hatching-appliances. - An incubator having means for supplying heat at the lower part of the egg-chamber in addition to the usual means for heating the upper part of the chamber, is constructed with a lateral casing and apertures to permit circulation of the air from the egg-chamber to the lower heating chamber and thence to the atmosphere or back to the egg-chamber. The hot gases from a heater d are conducted by a flue e first through the lower part of the egg-chamber a, then upwardly through a sleeve f to the upper part of the chamber. A porous diffusing diaphragm j is provided below the upper part of the flue, and at each side of the deflector t arranged over the lower part of the flue. Atmospheric air enters by the sleeve f and by apertures r, q. A casing n is provided having apertures p communicating with the egg-chamber a to allow the air in the chamber a to circulate and to form a jacket. Multiple flues or hot-water tanks may be employed and the apertures p, q r may be adjustable. A separate heater may be employed for the lower heat supply.
Patent GB-593267-A (GB)
Title: Improvements in and relating to the manufacture of shoes
IPC: A43B9/12
Filed: 1945-05-28
Abstract: 593,267. Lasting shoe uppers. NIELSEN, C. F., NIELSEN, S. L., SMITH, T. H., and GOWANS, J. S. May 28, 1945, No. 13362. Convention date, May 27, 1944. [Class 17 (ii)] A shoe upper of chrome tanned leather, felt or the like is pulled over the margin of an insole 15 on a last by means such as a lacing cord 7 which engages loop stitching 9, thread loops, wire hooks or perforations along the edges of the upper. While the tension on the cord is maintained, the upper on the last is steamed or mulled and the tension increased fully to stretch the upper. The upper is then secured in correct position on the insole, e.g., by tacks 14 and by an adhesive which may be activated during the steaming or mulling operation, the tension being maintained. A sode is attached by any of the usual methods. In the form shown, separate cords 7, 8 are employed at the forepart and heel end, these being passed through eyelets 11 in the waist of the upper and tied together to maintain tension.
Patent GB-788703-A (GB)
Title: A brake-actuating mechanism
IPC: F16D65/28
Filed: 1956-05-01
Abstract: 788,703. Fluid-pressure brakes. FAWICK, T. L. May 1, 1956 [Jan. 30, 1956], No. 13365/56. Class 103 (1). A brake actuating mechanism for operating the brakes of a vehicle either by a normal compressed-air supply, or an emergency hydraulic supply, comprises a cylinder 23 within which is moved a piston 21 by air pressure supplied through pipe 29, the piston acting through a ball and socket coupling upon a clevis 19 linked to a rocker arm 18. The stem 21a of piston 21 is hollow and slidable in an elongated piston member 32 so that the brake may be actuated alternatively by hydraulic fluid supplied through pipe 34 and axial passage 32b to the space to the left of piston 32.
Patent GB-1061744-A (GB)
Title: Improvements in electronic apparatus
IPC: H01J31/12
Filed: 1964-04-01
Abstract: 1,061,744. Cathode-ray tubes. GENERAL ELECTRIC CO. April 1, 1964 [April 4, 1963], No. 13388/64. Heading H1D. A flat cathode-ray tube includes a first, target-supporting, surface, a second opposed surface towards which the first surface curves to form a throat section through which an electron beam passes substantially parallel to the target, and vertical deflection means including a conductive member on the second surface adjacent the throat, to which the deflection signal is applied, and on the first surface a first conductive section extending from adjacent, the target toward the entrance to the throat, and a second conductive section extending into the throat and maintained at a lower potential than the first section, whereby to increase the transit time of electrons through the throat and hence increase the vertical deflection sensitivity. In the tube of Fig. 6, having a screen 16 with an aluminium coating 20 which has a downward extension 21, and a further conductive coating 23 which is separate from the extension 21, vertical deflection of the beam 3 over the screen is achieved by the application of the deflection voltage to a conductive coating 42 on the back wall of the tube, and hence to the resistive coating 41, 22, the coating 23 being held at a lower potential than coating 20, 21 to increase the electron transit time through the throat 23, 42. In an alternative arrangement, coating 23 may be connected both to earth and, via a highly resistive layer, to coating 20, from whence it derives its potential. In other embodiments, coating 23 is reduced to a small strip opposite and similar to coating 42 (Fig. 4, not shown), and resistive film 41 extends only partway down the back surface (Fig. 3, not shown). Numerical data for dimensions and performance are given.
Patent GB-1060976-A (GB)
Title: Improvements in or relating to roof structures
IPC: E04D13/16
Filed: 1964-04-01
Abstract: 1,060,976. Roof covering. G. A. G. IACOPPI and G. RABONI. March 3, 1965 [April 1, 1964], No. 13470/64. Heading E1W. A layer 12 of expanded thermoplastic material laid on a roof deck is covered with a layer 17 of asphalt with the interposition of a layer 14 of pitch impregnated reinforced corrugated paper or other fibrous sheet, additional means, such as stone chippings 15, filling the corrugations on at least one side of the layer 14 being provided to prevent crushing of said corrugated sheet due to softening of the impregnant by heat. As an alternative to the stone chippings 15, a flat sheet of pitch impregnated fibrous material may be laid over the corrugated sheet, Fig. 2 (not shown). A layer 13 of sheathing felt, Kraft paper or similar insulating material may be provided on one or both sides of the corrugated sheet. A layer of stone chippings may be adhered to the asphalt layer by bitumen and a coating film of paint applied over the stone chippings.
Patent GB-1255196-A (GB)
Title: Digital phase meter
IPC: G01R25/00
Filed: 1969-03-14
Abstract: 1,255,196. Selective signalling. INTERNATIONAL STANDARD ELECTRIC CORP. 14 March, 1969 [15 March, 1968], No. 13473/69. Heading G4H. The phase difference #, Fig. 2, between two signals, A, B, of equal frequency is measured by counting relatively high frequency clock pulses SC for the periods between the occurrences of similar points (e.g. positive going zerocross-ovens) on the two signals for a total duration of an integral multiple K of the periodic time To of the clock-pulses. By making the integral multiple K equal to 360, the actual final count will be the phase difference in degrees. In a modification designed to compensate for distortion which produces a wave C, Fig. 5, more peaky than a true sine-wave shown dotted, counting is made between consecutive positive going zero cross-overs-and these counts will be too high by an amount x caused by the distortion-and also between consecutive negative going zero cross-overswhich counts will be too low by an amount x. In this way symmetric distortion is compensated for. However with severe distortion, and small phase differences, an error in the final count representative of 180 degrees can occur. This situation is shown in Fig. 10, where a wave C2, after squaring leads a wave A1 (that is the centres of pulses C2 lead those of A1) by a small amount, yet each pulse A1 is completely overlapped by a pulse C2, so that whereas consecutive positive going leading edges are separated by a small amount, consecutive negative going edges are separated by a large amount (too large by half a wave length) because each negative going edge of C2 will co-operate with the negative going edge of the next (as opposed to the corresponding) A1 pulse. This sort of error can be detected by observing that it only occurs when the pulses C2 entirely overlap those of A1 (or vice-versa, as in Fig. 11, not shown) and a logic circuit (Fig. 9, not shown) is outlined for providing a signal when it occurs. Such a signal could be used to correct the final count by subtracting the appropriate number of half wave lengths. Logic circuits are also outlined for the first embodiment (Figs. 1 and 3, not shown) and for the modification (Fig. 6, not shown).
Patent GB-416647-A (GB)
Title: Device for retaining and delivering folded bands, especially bands of tickets
IPC: G07B5/00
Filed: 1934-05-04
Abstract: 416,647. Holding tickets. HUGENTOBLER, R., 198, Avenue Jean JaurÞs, Paris. May 4, 1934, No. 13491. Convention date, May 12, 1933. [Class 106 (iii).] Folded bands of paper such as tickets 3 are placed in a case or holder which is of such dimensions that the band will remain held in the arched form, so as to facilitate the unfolding and the withdrawl of successive lengths of tickets through a longitudinal slot formed by lips i, j, exercising an elastic grip on the part of the band ready for extraction. The lips may be cut away at k to facilitate gripping by the fingers.
Patent GB-134955-A (GB)
IPC: B60B35/00
Abstract: 134,955. Wiggins, E. O. Nov. 20, 1918. No Patent granted (Sealing fee not paid). Axle structures.- A temporary axle, to replace a broken axle-end and enable the car to be driven, comprises a member e to which the road wheel is attached, and which rides in a bearing p mounted in a bracket n attached to the axle flange c. The member e is split and embraces the driving-axle d, being secured thereto by a screwed sleeve i with a tapered part v.
Patent GB-495264-A (GB)
Title: Improvements in and relating to the finishing of hair cloth or like fabric
IPC: D06M11/44
Filed: 1937-05-14
Abstract: Hair cloth, or imitations thereof of mungo, jute or a mixture, is finished by passing it through a bath containing rubber latex or rubber solution, lead oxide and a filling material such as fuller's earth, barytes or china clay, wiping, heating, and then passing it through a bath containing sulphuric acid, soap, starch and acetic acid, with or without wax, squeezing and calendering. The baths are preferably agitated by compressed air.  The wipers may be carried by oscillating levers or may comprise adjustable rubber strips.  The fabric may be heated by heated rolls or irons.